| One of the Lennons | 18 |
| One of the leporidae | 20 |
| One of the leporids | 19 |
| One of the lesser Kardashians | 29 |
| One of the Lesser Sundas | 24 |
| One of the Levant States | 24 |
| One of the life sciences: Abbr. | 31 |
| One of the Lincolns | 19 |
| One of the Lindberghs | 21 |
| One of the literary Waughs | 26 |
| One of the Little Einsteins | 27 |
| One of the little foxes | 23 |
| One of the little people | 24 |
| One of the little piggies | 25 |
| One of the little things in life? | 33 |
| One of the Little Women | 23 |
| One of the lives in Plutarch's "Lives" | 52 |
| One of the living dead | 22 |
| One of the long bones | 21 |
| One of the Long fellows | 23 |
| One of the Longs | 16 |
| One of the Longs of La. | 23 |
| One of the losers in the War of the Pacific | 43 |
| One of the Lost Generation | 26 |
| One of the lotophagi | 20 |
| One of the Louisiana Purchase negotiators | 41 |
| One of the Low Countries: Abbr. | 31 |
| One of the Lower Lakes | 22 |
| One of the Loyalty Islands | 26 |
| One of the M's in MMR | 25 |
| One of the M's in MoMA | 26 |
| One of the M's of 3M: Abbr. | 31 |
| One of the Magi | 15 |
| One of the Magi, and namesakes | 30 |
| One of the maj. leagues | 23 |
| One of the major leagues (abbr.) | 32 |
| One of the major leagues, briefly | 33 |
| One of the major leagues: Abbr. | 31 |
| One of the major religions | 26 |
| One of the major world religions | 32 |
| One of the majors | 17 |
| One of the Mamas | 16 |
| One of the Mamas and the Papas | 30 |
| One of the Manning brothers | 27 |
| One of the Manning NFLers | 25 |
| One of the Manning quarterbacks | 31 |
| One of the Mannings | 19 |
| One of the manships | 19 |
| One of the March girls | 22 |
| One of the March sisters | 24 |
| One of the March women | 22 |
| One of the Marches | 18 |
| One of the Marianas | 19 |
| One of the Mario brothers | 25 |
| One of the Maritime Provinces: Abbr. | 36 |
| One of the Marsalis brothers | 28 |
| One of the Marshall Islands | 27 |
| One of the Marshall Islands' 29 | 35 |
| One of the martial arts | 23 |
| One of the Martins | 18 |
| One of the Marx brothers | 24 |
| One of the Marxes | 17 |
| One of the Masons | 17 |
| One of the masses | 17 |
| One of the Masseys | 18 |
| One of the Maunas | 17 |
| One of the Maverick brothers | 28 |
| One of the Mavericks | 20 |
| One of the Maxwells | 19 |
| One of the Mayberry gang | 24 |
| One of the Mayos in the Land of Lakes | 37 |
| One of the McCartneys | 21 |
| One of the media | 16 |
| One of the media: Abbr. | 23 |
| One of the media: Var. | 22 |
| One of the men behind bars | 26 |
| One of the men on "Two and a Half Men" | 48 |
| One of the men waiting in "Waiting for Godot" | 55 |
| One of the Menendez brothers | 28 |
| One of the Mercury Seven | 24 |
| One of the metalloids | 21 |
| One of the mice in "Cinderella" | 41 |
| One of the midday-sun seekers | 29 |
| One of the Minor Prophets | 25 |
| One of the Minors | 17 |
| One of the misfits | 18 |
| One of the Mitchells in an old UPN sitcom | 41 |
| One of the Mohicans | 19 |
| One of the Moluccas | 19 |
| One of the Mongolias | 20 |
| One of the Monkees | 18 |
| One of the Montagues | 20 |
| One of the Monty Python troupe | 30 |
| One of the moods | 16 |
| One of the moons of Uranus | 26 |
| One of the more benign of the seven dirty words | 47 |
| One of the more vicious fishes | 30 |
| One of the moreporks | 20 |
| One of the Morgans | 18 |
| One of the moveable feasts | 26 |